bypass headphone

a 3W single ended EL84 amp for home, work & school

bypass headphone

Postby justinsweber » Fri Jul 19, 2013 12:39 pm

Hey everyone... Im building a 3 of theses and it has been asked if I can bypass the headphones...
Whats involed? Both from a PCB stand point and wiring... I think I know, but am sure Ill miss something stupid.



Thank you!
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Re: bypass headphone

Postby Shannon Parks » Sat Jul 20, 2013 4:07 am

Omit R24, R25, R26, R27, J9 and the headphone jack. I believe that Mouser pn# 836-2617 would be a suitable hole plug on the Budgie SE black & gold top plate.

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Re: bypass headphone

Postby EWBrown » Sun Jul 21, 2013 9:20 pm

I also did not use the headphone output, and mounted a vintage surplus Dialco LED pilot light in the hole, powered it from the filament supply, with an added 1N4007 diode, and470 ohm series resistor, to feed current-limited DC to the LED.

I was too cheap to buy a power switch with the built in light, I just picked an appropriately sized, simple SPST switch from the junque box

/ed B
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